﻿112 



PR. J. MURIE ON THE THREE-BANDED ARMADILLO. 



The scapular muscles offer little, if any, variation from tte recorded examples of 

 dL«, Xatusia, and Chlcmi/dophon,s. The subscapu ans reaches but does not 

 fo bTyond the ossified cartilage. The supraspinatus slightly overlaps the bone at tk 

 ° k and at its vertebral end fiUs the fossa, save what space pertams to the rhomboideus 

 cMitis and protractor of the first movable zone. Like the above, the infraspinatus has 



an ordinary humeral insertion. As the teres major starts from the mferior posterior 

 border of the downward projecting scapuhu; angle, it is in close junction with the second 



division of the latissimus ; its humeral insertion is below and deeper than the latter. 



There is a rudimentary teres minor. 



Of humeral flexors, the biceps is double-headed, its scapular tendon strong compared 

 with the coracoid one. The powerful distal tendon gUdes in the lower humeral groove 

 and over the coronoid process to the pit beneath, the coronoid eminence actmg as a 

 fulcrum in flexion. In Dasppus both singleness and duplicity of origin and insertion 

 have been met with by different observers \ the neck of the radius receiving a share 

 of the terminal tendon. Chlamy dopliorus has a biceps agreeing best with that of 

 Tolf/peutes. I find the coraco-brachiaUs to be single, with a usual origin in conjunction 

 with the biceps. It has but a moderately fleshy beUy, and a very slender insertion upon 

 the inner condyle over the supracondyloid arch, therefore equivalent to the coraco- 

 brachialis longus of Prof. John Wood I This condition is that mentioned by MeckeP in 

 the Tatu, and similarly figured by Cuvier in D. 6-cinct'Us— though. Galton \ with whom 

 Macalister coincides, describes a second head of origin (short variety of Wood) in tlie 

 Tatter species. The flat, strong brachialis anticus comes from behind the humeral 

 neck, curves forwards below the deltoid bridge, and terminates by tendon in the coronoid 

 pit of the ulna, along with but outside the biceps. 



■ A single supinator muscle alone is indicated, this in itseE being indefinite. Some 

 fascia with obscure fleshy fibrillse comes from below the brachialis anticus, and appears 

 to go to the radial neck. Both s. longus and s. brevis are deficient in Chlamy dophorus ; 

 but in Dasypns a muscle better developed but with similar relations to that in Tolypeidei 

 obtains. Iluxley " and others regard it as a supinator brevis. 



torum profundus hinubergespannt. Gestalt.— Der muskel hat eine dreiseitig pyramidale gestalt mit einer medialen 



vordcrn und hintern fliiche. Grosse.— Der muskel hat eine lange von 1 z. ; eine breite von 2 lin. am urspninge 



und 5 lin. an der insertion ; eine dicke von 3 lin. muskel ist der absolut dickste der bis jetzt untersuchten there. 



Frsprung.— Der muskel entspringt mit einer kurzen und sehr starken sehne vom epitrochleus, aber mit keiner ver- 



langcrung von die innere wand des canalis supracondyloideus humeri darsteUenden knochspange an dem ganzen 



hintern rand der l-lj Hn. dicke coracobrachialis zum schnitze des durch den canal durchtretenden nervus medi- 



anus mid der vas. brachiaHa sich ansetzt. Insertion.— Der muskel inserirt sieh an die mediale flache des olecranon 



vor den anconeus longus und zwischen dem anconeus internus und ulnaris intemus medianwarts von einem fleisch- 



kopfe dos flexor digitorum profundus, welcher ihn von der ellenbogengelenk-kapsel scheidet mit dem anconeus 



mUrnuB und ulnaris intemus ist der muskel an der insertion-steUe verwachsen. Nerve.-Dieser kommt wie bei andem 



thveren, die den muskel besitzen, vom nervus ulnaris." 



' l^^-^orded single-headed by Galton and MacaHster, papers cited ; but the latter, with Prof. Haughton, has met 



w.th u double-W^^ Joum. of Anat. 1868, p. 285. 



^Joum.ofAnati867.p.51. ^ ^at. Comp. (Paris) vol. vi. p. 280. 



c. p. 534, pi. 44. figs. r& 2, c B, c B^ and c b». ' MS. notes, dissection of D. 6-cinctus. 



